Stubblefield coils (bifilar) and speculations

[resonanceman]

@ All:

One of the ideas I am playing with involves the bifilar coil, but shaped in a circular configuration.  Not like the TPU but almost.  This shape could be about 300 degrees around as opposed to 360.  Like a circle with a small piece missing.  We could then place these into the ground in a horizontal position instead of vertical.  What advantages there might be I can only guess at this point.  I was also thinking that one could "stack" these in a series connection that might actually work. (Think about stacking these on yet another iron center core.....like horseshoes around a stake)

The rotation of the magnetic fields in the stacked position might actually build upon and feed off each other.  Then again, they may actually cancel each other to some degree.

Just some free thinking here.  I will build several in the near future.

Bill

Bill
Sounds interesting

I am courious  about  why   you plan to leave a piece of the   toroid open


gary

[DrStiffler]

@ All:

One of the ideas I am playing with involves the bifilar coil, but shaped in a circular configuration.  Not like the TPU but almost.  This shape could be about 300 degrees around as opposed to 360.  Like a circle with a small piece missing.  We could then place these into the ground in a horizontal position instead of vertical.  What advantages there might be I can only guess at this point.  I was also thinking that one could "stack" these in a series connection that might actually work. (Think about stacking these on yet another iron center core.....like horseshoes around a stake)

The rotation of the magnetic fields in the stacked position might actually build upon and feed off each other.  Then again, they may actually cancel each other to some degree.

Just some free thinking here.  I will build several in the near future.

Bill

@Pirate88179
Bill;
Hey I really, really want to help you all out, but lets do it offline and what you do with it is your business, ex PI to current PI.

drstiffler at embarqmail dot com

Thanks Bill

[Pirate88179]

Gary:

The way I see it, and of course I am just guessing,  I don't want it to be a continuous coil as I believe it will "short" itself on the core. (the core ends essentially touching each other as in a complete circle)  I am picturing a coil like we have built but, bend it into an almost complete circle such that the "top" end of the core almost but does not touch the "bottom" end.

Think of it like this:  If we built 4 coils in our regular construction style (straight) and laid them down on the ground in a square shape so the cores ends all touched each other, I don't think this would work and this would be essentially what you would have with a continuous circle. (does this make any sense?)

The main thing I am going after is to direct the magnetic fields into an almost circular pattern whereby they could then be stacked, and positioned to "tune" the magnetic filed by rotating each layer individually.  An afterthought was to add yet another large iron core into the center of the stack itself.  So you would have the circular core with the bifilar windings all surround another iron core intersecting at 90 degrees. This may or may not help, it was just a thought.

In looking over my "explanation" here, it sounds confusing even to me. (and I wrote it)  I will try to make up yet another very crude sketch and post it for your thoughts.  I am leaving for work now but will get to it when I can.

This all might be a bunch of nothing.  I just thought it might be a way to concentrate the magnetic fields and add a slight "tuning" ability to them.

Bill

[Pirate88179]

Here is a very crude, quick sketch.  I'll make a better one later....hopefully.

Bill

[resonanceman]

Here is a very crude, quick sketch.  I'll make a better one later....hopefully.

Bill

Bill

I don't know  if the  core in the center  will help

It is my understanding that  one of the  things that makes a  toroid  work well is that   if it  is wound carefully pretty much all the flux stays in the core .


I think  it would  be interesting  to test  coils like that in the same ways you  tested  rods  in the  ground
If the  energy currents in the earth get  transfered  into  the   core  they may get amplified   by the windings .



gary